A piece of transparent material specifically designed to be placed directly in front of a dial or scale to protect it from foreign matter. It is cut to size and may include a frame. It may have an index line or other marking. See also window, observation; and dial, scale.
Classification: Clock or watch glass; glasses for noncorrective spectagles not optically worked; hollow glass spheres and their segments for the mnfctr ofsuch glasses
NSN 4140-00-289-9263
NSN 5835-01-090-6712
NSN 6685-01-534-0486
NSN 6220-00-397-6910
NSN 5910-01-330-5904
NSN 6645-01-021-5727
NSN 5925-01-193-4305
NSN 6145-01-469-4254
NSN 5965-01-425-3904
NSN 5920-01-108-0062
NSN 5855-00-116-6621
NSN 5930-00-138-5235